static internal extern /*SQLRETURN*/ODBC32.RetCode SQLBindCol(
/*SQLHSTMT*/OdbcStatementHandle StatementHandle,
/*SQLUSMALLINT*/UInt16 ColumnNumber,
/*SQLSMALLINT*/ODBC32.SQL_C TargetType,
/*SQLPOINTER*/IntPtr TargetValue,
/*SQLLEN*/IntPtr BufferLength,
/*SQLLEN* */IntPtr StrLen_or_Ind);
internal OdbcHandle(OdbcStatementHandle parentHandle, ODBC32.SQL_ATTR attribute) : base(IntPtr.Zero, true)
{
ODBC32.RetCode code;
this._handleType = ODBC32.SQL_HANDLE.DESC;
bool success = false;
RuntimeHelpers.PrepareConstrainedRegions();
try
{
int num;
parentHandle.DangerousAddRef(ref success);
code = parentHandle.GetStatementAttribute(attribute, out this.handle, out num);
}
finally
{
if (success)
{
if (IntPtr.Zero != base.handle)
{
this._parentHandle = parentHandle;
}
else
{
parentHandle.DangerousRelease();
}
}
}
if (ADP.PtrZero == base.handle)
{
throw ODBC.FailedToGetDescriptorHandle(code);
}
}
internal Exception HandleErrorNoThrow(OdbcHandle hrHandle, ODBC32.RetCode retcode)
{
switch (retcode)
{
case ODBC32.RetCode.SUCCESS:
break;
case ODBC32.RetCode.SUCCESS_WITH_INFO:
if (this.infoMessageEventHandler != null)
{
OdbcErrorCollection errors = ODBC32.GetDiagErrors(null, hrHandle, retcode);
errors.SetSource(this.Driver);
this.OnInfoMessage(new OdbcInfoMessageEventArgs(errors));
}
break;
default:
{
OdbcException innerException = OdbcException.CreateException(ODBC32.GetDiagErrors(null, hrHandle, retcode), retcode);
if (innerException != null)
{
innerException.Errors.SetSource(this.Driver);
}
this.ConnectionIsAlive(innerException);
return(innerException);
}
}
return(null);
}
// non-throwing HandleError
internal Exception HandleErrorNoThrow(OdbcHandle hrHandle, ODBC32.RetCode retcode)
{
Debug.Assert(retcode != ODBC32.RetCode.INVALID_HANDLE, "retcode must never be ODBC32.RetCode.INVALID_HANDLE");
switch (retcode)
{
case ODBC32.RetCode.SUCCESS:
break;
case ODBC32.RetCode.SUCCESS_WITH_INFO:
{
//Optimize to only create the event objects and obtain error info if
//the user is really interested in retriveing the events...
if (_infoMessageEventHandler != null)
{
OdbcErrorCollection errors = ODBC32.GetDiagErrors(null, hrHandle, retcode);
errors.SetSource(this.Driver);
OnInfoMessage(new OdbcInfoMessageEventArgs(errors));
}
break;
}
default:
OdbcException e = OdbcException.CreateException(ODBC32.GetDiagErrors(null, hrHandle, retcode), retcode);
if (e != null)
{
e.Errors.SetSource(this.Driver);
}
ConnectionIsAlive(e); // this will close and throw if the connection is dead
return((Exception)e);
}
return(null);
}
protected OdbcHandle(ODBC32.SQL_HANDLE handleType, OdbcHandle parentHandle) : base(IntPtr.Zero, true) {
_handleType = handleType;
bool mustRelease = false;
ODBC32.RetCode retcode = ODBC32.RetCode.SUCCESS;
// using ConstrainedRegions to make the native ODBC call and AddRef the parent
RuntimeHelpers.PrepareConstrainedRegions();
try {
// validate handleType
switch(handleType) {
case ODBC32.SQL_HANDLE.ENV:
Debug.Assert(null == parentHandle, "did not expect a parent handle");
retcode = UnsafeNativeMethods.SQLAllocHandle(handleType, IntPtr.Zero, out base.handle);
break;
case ODBC32.SQL_HANDLE.DBC:
case ODBC32.SQL_HANDLE.STMT:
// must addref before calling native so it won't be released just after
Debug.Assert(null != parentHandle, "expected a parent handle"); // safehandle can't be null
parentHandle.DangerousAddRef(ref mustRelease);
retcode = UnsafeNativeMethods.SQLAllocHandle(handleType, parentHandle, out base.handle);
break;
// case ODBC32.SQL_HANDLE.DESC:
default:
Debug.Assert(false, "unexpected handleType");
break;
}
}
finally {
if (mustRelease) {
switch(handleType) {
case ODBC32.SQL_HANDLE.DBC:
case ODBC32.SQL_HANDLE.STMT:
if (IntPtr.Zero != base.handle) {
// must assign _parentHandle after a handle is actually created
// since ReleaseHandle will only call DangerousRelease if a handle exists
_parentHandle = parentHandle;
}
else {
// without a handle, ReleaseHandle may not be called
parentHandle.DangerousRelease();
}
break;
}
}
}
Bid.TraceSqlReturn("<odbc.SQLAllocHandle|API|ODBC|RET> %08X{SQLRETURN}\n", retcode);
if((ADP.PtrZero == base.handle) || (ODBC32.RetCode.SUCCESS != retcode)) {
//
throw ODBC.CantAllocateEnvironmentHandle(retcode);
}
}
internal object MarshalToManaged(int offset, ODBC32.SQL_C sqlctype, int cb)
{
switch (sqlctype)
{
case ODBC32.SQL_C.SLONG:
return base.ReadInt32(offset);
case ODBC32.SQL_C.SSHORT:
return base.ReadInt16(offset);
case ODBC32.SQL_C.SBIGINT:
return base.ReadInt64(offset);
case ODBC32.SQL_C.UTINYINT:
return base.ReadByte(offset);
case ODBC32.SQL_C.GUID:
return base.ReadGuid(offset);
case ODBC32.SQL_C.WCHAR:
if (cb != -3)
{
cb = Math.Min((int) (cb / 2), (int) ((base.Length - 2) / 2));
return base.PtrToStringUni(offset, cb);
}
return base.PtrToStringUni(offset);
case ODBC32.SQL_C.BIT:
return (base.ReadByte(offset) != 0);
case ODBC32.SQL_C.BINARY:
case ODBC32.SQL_C.CHAR:
cb = Math.Min(cb, base.Length);
return base.ReadBytes(offset, cb);
case ODBC32.SQL_C.NUMERIC:
return base.ReadNumeric(offset);
case ODBC32.SQL_C.REAL:
return base.ReadSingle(offset);
case ODBC32.SQL_C.DOUBLE:
return base.ReadDouble(offset);
case ODBC32.SQL_C.TYPE_DATE:
return base.ReadDate(offset);
case ODBC32.SQL_C.TYPE_TIME:
return base.ReadTime(offset);
case ODBC32.SQL_C.TYPE_TIMESTAMP:
return base.ReadDateTime(offset);
}
return null;
}
static internal extern /*SQLRETURN*/ODBC32.RetCode SQLBindParameter(
/*SQLHSTMT*/OdbcStatementHandle StatementHandle,
/*SQLUSMALLINT*/UInt16 ParameterNumber,
/*SQLSMALLINT*/Int16 ParamDirection,
/*SQLSMALLINT*/ODBC32.SQL_C SQLCType,
/*SQLSMALLINT*/Int16 SQLType,
/*SQLULEN*/IntPtr cbColDef,
/*SQLSMALLINT*/IntPtr ibScale,
/*SQLPOINTER*/HandleRef rgbValue,
/*SQLLEN*/IntPtr BufferLength,
/*SQLLEN* */HandleRef StrLen_or_Ind);
ODBC32.RETCODE _retcode; // DO NOT REMOVE! only needed for serialization purposes, because Everett had it.
static internal OdbcException CreateException(OdbcErrorCollection errors, ODBC32.RetCode retcode) {
StringBuilder builder = new StringBuilder();
foreach (OdbcError error in errors) {
if (builder.Length > 0) {
builder.Append(Environment.NewLine);
}
builder.Append(Res.GetString(Res.Odbc_ExceptionMessage, ODBC32.RetcodeToString(retcode), error.SQLState, error.Message)); // MDAC 68337
}
OdbcException exception = new OdbcException(builder.ToString(), errors);
return exception;
}
private TypeMap(OdbcType odbcType, DbType dbType, Type type, ODBC32.SQL_TYPE sql_type, ODBC32.SQL_C sql_c, ODBC32.SQL_C param_sql_c, int bsize, int csize, bool signType)
{
this._odbcType = odbcType;
this._dbType = dbType;
this._type = type;
this._sql_type = sql_type;
this._sql_c = sql_c;
this._param_sql_c = param_sql_c;
this._bufferSize = bsize;
this._columnSize = csize;
this._signType = signType;
}
internal static OdbcException CreateException(OdbcErrorCollection errors, ODBC32.RetCode retcode)
{
StringBuilder builder = new StringBuilder();
foreach (OdbcError error in errors)
{
if (builder.Length > 0)
{
builder.Append(Environment.NewLine);
}
builder.Append(Res.GetString("Odbc_ExceptionMessage", new object[] { ODBC32.RetcodeToString(retcode), error.SQLState, error.Message }));
}
return new OdbcException(builder.ToString(), errors);
}
internal static OdbcException CreateException(OdbcErrorCollection errors, ODBC32.RetCode retcode)
{
StringBuilder builder = new StringBuilder();
foreach (OdbcError error in errors)
{
if (builder.Length > 0)
{
builder.Append(Environment.NewLine);
}
builder.Append(Res.GetString("Odbc_ExceptionMessage", new object[] { ODBC32.RetcodeToString(retcode), error.SQLState, error.Message }));
}
return(new OdbcException(builder.ToString(), errors));
}
internal ODBC32.RetCode BindParameter(short ordinal, short parameterDirection, ODBC32.SQL_C sqlctype, ODBC32.SQL_TYPE sqltype, IntPtr cchSize, IntPtr scale, HandleRef buffer, IntPtr bufferLength, HandleRef intbuffer) {
ODBC32.RetCode retcode = UnsafeNativeMethods.SQLBindParameter(this,
checked((ushort)ordinal), // Parameter Number
parameterDirection, // InputOutputType
sqlctype, // ValueType
checked((short)sqltype), // ParameterType
cchSize, // ColumnSize
scale, // DecimalDigits
buffer, // ParameterValuePtr
bufferLength, // BufferLength
intbuffer); // StrLen_or_IndPtr
ODBC.TraceODBC(3, "SQLBindParameter", retcode);
return retcode;
}
protected OdbcHandle(ODBC32.SQL_HANDLE handleType, OdbcHandle parentHandle) : base(IntPtr.Zero, true)
{
this._handleType = handleType;
bool success = false;
ODBC32.RetCode sUCCESS = ODBC32.RetCode.SUCCESS;
RuntimeHelpers.PrepareConstrainedRegions();
try
{
switch (handleType)
{
case ODBC32.SQL_HANDLE.ENV:
sUCCESS = UnsafeNativeMethods.SQLAllocHandle(handleType, IntPtr.Zero, out this.handle);
goto Label_0099;
case ODBC32.SQL_HANDLE.DBC:
case ODBC32.SQL_HANDLE.STMT:
parentHandle.DangerousAddRef(ref success);
sUCCESS = UnsafeNativeMethods.SQLAllocHandle(handleType, parentHandle, out this.handle);
goto Label_0099;
}
}
finally
{
if (success)
{
switch (handleType)
{
case ODBC32.SQL_HANDLE.DBC:
case ODBC32.SQL_HANDLE.STMT:
if (!(IntPtr.Zero != base.handle))
{
goto Label_0092;
}
this._parentHandle = parentHandle;
break;
}
}
goto Label_0098;
Label_0092:
parentHandle.DangerousRelease();
Label_0098:;
}
Label_0099:
Bid.TraceSqlReturn("<odbc.SQLAllocHandle|API|ODBC|RET> %08X{SQLRETURN}\n", sUCCESS);
if ((ADP.PtrZero == base.handle) || (sUCCESS != ODBC32.RetCode.SUCCESS))
{
throw ODBC.CantAllocateEnvironmentHandle(sUCCESS);
}
}
internal static OdbcException CreateException(OdbcErrorCollection errors, ODBC32.RetCode retcode)
{
StringBuilder builder = new StringBuilder();
foreach (OdbcError error in errors)
{
if (builder.Length > 0)
{
builder.Append(Environment.NewLine);
}
builder.Append(SR.GetString(SR.Odbc_ExceptionMessage, ODBC32.RetcodeToString(retcode), error.SQLState, error.Message)); // MDAC 68337
}
OdbcException exception = new OdbcException(builder.ToString(), errors);
return(exception);
}
internal void FreeKeyInfoStatementHandle(ODBC32.STMT stmt)
{
OdbcStatementHandle handle = this._keyinfostmt;
if (handle != null)
{
try
{
handle.FreeStatement(stmt);
}
catch (Exception exception)
{
if (ADP.IsCatchableExceptionType(exception))
{
this._keyinfostmt = null;
handle.Dispose();
}
throw;
}
}
}
internal static Exception CantAllocateEnvironmentHandle(ODBC32.RetCode retcode)
{
return(ADP.DataAdapter(Res.GetString("Odbc_CantAllocateEnvironmentHandle", new object[] { ODBC32.RetcodeToString(retcode) })));
}
internal static Exception FailedToGetDescriptorHandle(ODBC32.RetCode retcode)
{
return(ADP.DataAdapter(SR.GetString(SR.Odbc_FailedToGetDescriptorHandle, ODBC32.RetcodeToString(retcode))));
}
internal bool TestTypeSupport (ODBC32.SQL_TYPE sqltype){
ODBC32.SQL_CONVERT sqlconvert;
ODBC32.SQL_CVT sqlcvt;
// we need to convert the sqltype to sqlconvert and sqlcvt first
//
switch (sqltype) {
case ODBC32.SQL_TYPE.NUMERIC: {
sqlconvert = ODBC32.SQL_CONVERT.NUMERIC;
sqlcvt = ODBC32.SQL_CVT.NUMERIC;
break;
}
case ODBC32.SQL_TYPE.WCHAR: {
sqlconvert = ODBC32.SQL_CONVERT.CHAR;
sqlcvt = ODBC32.SQL_CVT.WCHAR;
break;
}
case ODBC32.SQL_TYPE.WVARCHAR: {
sqlconvert = ODBC32.SQL_CONVERT.VARCHAR;
sqlcvt = ODBC32.SQL_CVT.WVARCHAR;
break;
}
case ODBC32.SQL_TYPE.WLONGVARCHAR: {
sqlconvert = ODBC32.SQL_CONVERT.LONGVARCHAR;
sqlcvt = ODBC32.SQL_CVT.WLONGVARCHAR;
break;
}
default:
Debug.Assert(false, "Testing that sqltype is currently not supported");
return false;
}
// now we can check if we have already tested that type
// if not we need to do so
if (0 == (ProviderInfo.TestedSQLTypes & (int)sqlcvt)) {
int flags;
flags = GetInfoInt32Unhandled((ODBC32.SQL_INFO)sqlconvert);
flags = flags & (int)sqlcvt;
ProviderInfo.TestedSQLTypes |= (int)sqlcvt;
ProviderInfo.SupportedSQLTypes |= flags;
}
// now check if the type is supported and return the result
//
return (0 != (ProviderInfo.SupportedSQLTypes & (int)sqlcvt));
}
internal ODBC32.RetCode GetConnectionAttribute(ODBC32.SQL_ATTR attribute, byte[] buffer, out int cbActual) {
ODBC32.RetCode retcode = UnsafeNativeMethods.SQLGetConnectAttrW(this, attribute, buffer, buffer.Length, out cbActual);
Bid.Trace("<odbc.SQLGetConnectAttr|ODBC> SQLRETURN=%d, Attribute=%d, BufferLength=%d, StringLength=%d\n", (int)retcode, (int)attribute, buffer.Length, (int)cbActual);
return retcode;
}
static internal Exception CantAllocateEnvironmentHandle(ODBC32.RetCode retcode) {
return ADP.DataAdapter(Res.GetString(Res.Odbc_CantAllocateEnvironmentHandle, ODBC32.RetcodeToString(retcode)));
}
internal readonly bool _signType; // this type may be has signature information
private TypeMap(OdbcType odbcType, DbType dbType, Type type, ODBC32.SQL_TYPE sql_type, ODBC32.SQL_C sql_c, ODBC32.SQL_C param_sql_c, int bsize, int csize, bool signType) {
_odbcType = odbcType;
_dbType = dbType;
_type = type;
_sql_type = sql_type;
_sql_c = sql_c;
_param_sql_c = param_sql_c; // alternative sql_c type for parameters
_bufferSize = bsize;
_columnSize = csize;
_signType = signType;
}
static internal void TraceODBC(int level, string method, ODBC32.RetCode retcode) {
Bid.TraceSqlReturn("<odbc|API|ODBC|RET> %08X{SQLRETURN}, method=%ls\n", retcode, method);
}
internal ODBC32.RetCode SetConnectionAttribute3(ODBC32.SQL_ATTR attribute, string buffer, Int32 length) {
ODBC32.RetCode retcode = UnsafeNativeMethods.SQLSetConnectAttrW(this, attribute, buffer, length);
Bid.Trace("<odbc.SQLSetConnectAttr|ODBC> SQLRETURN=%d, Attribute=%d, BufferLength=%d\n", (int)retcode, (int)attribute, buffer.Length);
return retcode;
}
internal ODBC32.RetCode SetConnectionAttribute2(ODBC32.SQL_ATTR attribute, IntPtr value, Int32 length) {
ODBC32.RetCode retcode = UnsafeNativeMethods.SQLSetConnectAttrW(this, attribute, value, length);
ODBC.TraceODBC(3, "SQLSetConnectAttrW", retcode);
return retcode;
}
internal ODBC32.RetCode GetInfo1(ODBC32.SQL_INFO info, byte[] buffer) {
ODBC32.RetCode retcode = UnsafeNativeMethods.SQLGetInfoW(this, info, buffer, checked((short)buffer.Length), ADP.PtrZero);
Bid.Trace("<odbc.SQLGetInfo|ODBC> SQLRETURN=%d, InfoType=%d, BufferLength=%d\n", (int)retcode, (int)info, buffer.Length);
return retcode;
}
internal ODBC32.RetCode GetInfo2(ODBC32.SQL_INFO info, byte[] buffer, out short cbActual) {
ODBC32.RetCode retcode = UnsafeNativeMethods.SQLGetInfoW(this, info, buffer, checked((short)buffer.Length), out cbActual);
Bid.Trace("<odbc.SQLGetInfo|ODBC> SQLRETURN=%d, InfoType=%d, BufferLength=%d, StringLength=%d\n", (int)retcode, (int)info, buffer.Length, (int)cbActual);
return retcode;
}
internal ODBC32.RetCode GetFunctions(ODBC32.SQL_API fFunction, out Int16 fExists) {
ODBC32.RetCode retcode = UnsafeNativeMethods.SQLGetFunctions(this, fFunction, out fExists);
ODBC.TraceODBC(3, "SQLGetFunctions", retcode);
return retcode;
}
internal static Exception CantEnableConnectionpooling(ODBC32.RetCode retcode)
{
return(ADP.DataAdapter(Res.GetString("Odbc_CantEnableConnectionpooling", new object[] { ODBC32.RetcodeToString(retcode) })));
}
internal static Exception FailedToGetDescriptorHandle(ODBC32.RetCode retcode)
{
return(ADP.DataAdapter(Res.GetString("Odbc_FailedToGetDescriptorHandle", new object[] { ODBC32.RetcodeToString(retcode) })));
}
internal bool TestRestrictedSqlBindType (ODBC32.SQL_TYPE sqltype){
ODBC32.SQL_CVT sqlcvt;
switch (sqltype) {
case ODBC32.SQL_TYPE.NUMERIC: {
sqlcvt = ODBC32.SQL_CVT.NUMERIC;
break;
}
case ODBC32.SQL_TYPE.DECIMAL: {
sqlcvt = ODBC32.SQL_CVT.DECIMAL;
break;
}
default:
Debug.Assert(false, "Testing that sqltype is currently not supported");
return false;
}
return (0 != (ProviderInfo.RestrictedSQLBindTypes & (int)sqlcvt));
}
static internal Exception UnknownSQLType(ODBC32.SQL_TYPE sqltype) {
return ADP.Argument(Res.GetString(Res.Odbc_UnknownSQLType, sqltype.ToString()));
}
internal void MarshalToNative(int offset, object value, ODBC32.SQL_C sqlctype, int sizeorprecision, int valueOffset)
{
ODBC32.SQL_C sql_c = sqlctype;
if (sql_c <= ODBC32.SQL_C.SSHORT)
{
if (sql_c != ODBC32.SQL_C.UTINYINT)
{
switch (sql_c)
{
case ODBC32.SQL_C.SLONG:
base.WriteInt32(offset, (int) value);
return;
case ODBC32.SQL_C.SSHORT:
base.WriteInt16(offset, (short) value);
return;
case ODBC32.SQL_C.SBIGINT:
base.WriteInt64(offset, (long) value);
return;
}
}
else
{
base.WriteByte(offset, (byte) value);
}
}
else if (sql_c <= ODBC32.SQL_C.NUMERIC)
{
switch (sql_c)
{
case ODBC32.SQL_C.GUID:
base.WriteGuid(offset, (Guid) value);
return;
case ~(ODBC32.SQL_C.CHAR | ODBC32.SQL_C.DOUBLE):
case ~ODBC32.SQL_C.DOUBLE:
case ((ODBC32.SQL_C) (-1)):
case ((ODBC32.SQL_C) 0):
return;
case ODBC32.SQL_C.WCHAR:
int num;
char[] chArray;
if (value is string)
{
num = Math.Max(0, ((string) value).Length - valueOffset);
if ((sizeorprecision > 0) && (sizeorprecision < num))
{
num = sizeorprecision;
}
chArray = ((string) value).ToCharArray(valueOffset, num);
base.WriteCharArray(offset, chArray, 0, chArray.Length);
base.WriteInt16(offset + (chArray.Length * 2), 0);
return;
}
num = Math.Max(0, ((char[]) value).Length - valueOffset);
if ((sizeorprecision > 0) && (sizeorprecision < num))
{
num = sizeorprecision;
}
chArray = (char[]) value;
base.WriteCharArray(offset, chArray, valueOffset, num);
base.WriteInt16(offset + (chArray.Length * 2), 0);
return;
case ODBC32.SQL_C.BIT:
base.WriteByte(offset, ((bool) value) ? ((byte) 1) : ((byte) 0));
return;
case ODBC32.SQL_C.BINARY:
case ODBC32.SQL_C.CHAR:
{
byte[] source = (byte[]) value;
int length = source.Length;
length -= valueOffset;
if ((sizeorprecision > 0) && (sizeorprecision < length))
{
length = sizeorprecision;
}
base.WriteBytes(offset, source, valueOffset, length);
return;
}
case ODBC32.SQL_C.NUMERIC:
base.WriteNumeric(offset, (decimal) value, (byte) sizeorprecision);
return;
}
}
else
{
switch (sql_c)
{
case ODBC32.SQL_C.REAL:
base.WriteSingle(offset, (float) value);
return;
case ODBC32.SQL_C.DOUBLE:
base.WriteDouble(offset, (double) value);
return;
case ODBC32.SQL_C.TYPE_DATE:
base.WriteDate(offset, (DateTime) value);
return;
case ODBC32.SQL_C.TYPE_TIME:
base.WriteTime(offset, (TimeSpan) value);
return;
case ODBC32.SQL_C.TYPE_TIMESTAMP:
this.WriteODBCDateTime(offset, (DateTime) value);
return;
default:
return;
}
}
}
static internal Exception CantEnableConnectionpooling(ODBC32.RetCode retcode) {
return ADP.DataAdapter(Res.GetString(Res.Odbc_CantEnableConnectionpooling, ODBC32.RetcodeToString(retcode)));
}
static internal Exception FailedToGetDescriptorHandle(ODBC32.RetCode retcode) {
return ADP.DataAdapter(Res.GetString(Res.Odbc_FailedToGetDescriptorHandle, ODBC32.RetcodeToString(retcode)));
}
static internal TypeMap FromSqlType(ODBC32.SQL_TYPE sqltype) {
switch(sqltype) {
case ODBC32.SQL_TYPE.CHAR: return _Char;
case ODBC32.SQL_TYPE.VARCHAR: return _VarChar;
case ODBC32.SQL_TYPE.LONGVARCHAR: return _Text;
case ODBC32.SQL_TYPE.WCHAR: return _NChar;
case ODBC32.SQL_TYPE.WVARCHAR: return _NVarChar;
case ODBC32.SQL_TYPE.WLONGVARCHAR: return _NText;
case ODBC32.SQL_TYPE.DECIMAL: return _Decimal;
case ODBC32.SQL_TYPE.NUMERIC: return _Numeric;
case ODBC32.SQL_TYPE.SMALLINT: return _SmallInt;
case ODBC32.SQL_TYPE.INTEGER: return _Int;
case ODBC32.SQL_TYPE.REAL: return _Real;
case ODBC32.SQL_TYPE.FLOAT: return _Double;
case ODBC32.SQL_TYPE.DOUBLE: return _Double;
case ODBC32.SQL_TYPE.BIT: return _Bit;
case ODBC32.SQL_TYPE.TINYINT: return _TinyInt;
case ODBC32.SQL_TYPE.BIGINT: return _BigInt;
case ODBC32.SQL_TYPE.BINARY: return _Binary;
case ODBC32.SQL_TYPE.VARBINARY: return _VarBinary;
case ODBC32.SQL_TYPE.LONGVARBINARY: return _Image;
case ODBC32.SQL_TYPE.TYPE_DATE: return _Date;
case ODBC32.SQL_TYPE.TYPE_TIME: return _Time;
case ODBC32.SQL_TYPE.TIMESTAMP:
case ODBC32.SQL_TYPE.TYPE_TIMESTAMP: return _DateTime;
case ODBC32.SQL_TYPE.GUID: return _UniqueId;
case ODBC32.SQL_TYPE.SS_VARIANT: return _Variant;
case ODBC32.SQL_TYPE.SS_UDT: return _UDT;
case ODBC32.SQL_TYPE.SS_XML: return _XML;
case ODBC32.SQL_TYPE.SS_UTCDATETIME:
case ODBC32.SQL_TYPE.SS_TIME_EX:
throw ODBC.UnknownSQLType(sqltype);
default:
throw ODBC.UnknownSQLType(sqltype);
}
}
internal void SetInputValue(object value, ODBC32.SQL_C sql_c_type, int cbsize, int sizeorprecision, int offset, CNativeBuffer parameterBuffer) { //Handle any input params
if((ParameterDirection.Input == _internalDirection) || (ParameterDirection.InputOutput == _internalDirection)) {
//Note: (lang) "null" means to use the servers default (not DBNull).
//We probably should just not have bound this parameter, period, but that
//would mess up the users question marks, etc...
if((null == value)) {
parameterBuffer.WriteIntPtr(_preparedIntOffset, (IntPtr)ODBC32.SQL_DEFAULT_PARAM);
}
else if(Convert.IsDBNull(value)) {
parameterBuffer.WriteIntPtr(_preparedIntOffset, (IntPtr)ODBC32.SQL_NULL_DATA);
}
else {
switch(sql_c_type) {
case ODBC32.SQL_C.CHAR:
case ODBC32.SQL_C.WCHAR:
case ODBC32.SQL_C.BINARY:
//StrLen_or_IndPtr is ignored except for Character or Binary or data.
parameterBuffer.WriteIntPtr(_preparedIntOffset, (IntPtr)cbsize);
break;
default:
parameterBuffer.WriteIntPtr(_preparedIntOffset, IntPtr.Zero);
break;
}
//Place the input param value into the native buffer
parameterBuffer.MarshalToNative(_preparedValueOffset, value, sql_c_type, sizeorprecision, offset);
}
}
else {
// always set ouput only and return value parameter values to null when executing
_internalValue = null;
//Always initialize the intbuffer (for output params). Since we need to know
//if/when the parameters are available for output. (ie: when is the buffer valid...)
//if (_sqldirection != ODBC32.SQL_PARAM.INPUT)
parameterBuffer.WriteIntPtr(_preparedIntOffset, (IntPtr)ODBC32.SQL_NULL_DATA);
}
}
internal SchemaFunctionName(string schemaName, ODBC32.SQL_API odbcFunction) {
_schemaName = schemaName;
_odbcFunction = odbcFunction;
}
internal static Exception CantEnableConnectionpooling(ODBC32.RetCode retcode)
{
return(ADP.DataAdapter(SR.GetString(SR.Odbc_CantEnableConnectionpooling, ODBC32.RetcodeToString(retcode))));
}
internal ODBC32.RetCode SetConnectionAttribute4(ODBC32.SQL_ATTR attribute, System.Transactions.IDtcTransaction transaction, Int32 length) {
ODBC32.RetCode retcode = UnsafeNativeMethods.SQLSetConnectAttrW(this, attribute, transaction, length);
ODBC.TraceODBC(3, "SQLSetConnectAttrW", retcode);
return retcode;
}
internal static Exception CantAllocateEnvironmentHandle(ODBC32.RetCode retcode)
{
return(ADP.DataAdapter(SR.GetString(SR.Odbc_CantAllocateEnvironmentHandle, ODBC32.RetcodeToString(retcode))));
}